Detailed explanation of engine oil model, is there a big difference between 0w and 5w?

The cost of 0W engine oil is high, and the high-end engine oil is basically 0W, you see that the traditional 0W of the Golden Mobil Castrol brand are all high-end series, and GT Magic Red is a PAO base oil, and there is no 5W engine oil, which is all 0W labels.

N stands for oil quality grade, starting from SA and ending with SN, the further back the quality grade, the higher the quality grade.

"W" is the meaning of winter, the smaller the number in front of W, the better the cold resistance, and it is generally recommended to use 0w or 5w engine oil in the north in winter.

0 means that the oil can remain liquid at a low temperature of minus 40°, and below -40°, the oil will be very fluid.

5 means that when the low temperature is minus 35°, the oil can remain liquid, below -35°, the oil will have poor fluidity.

10 means that when the temperature is minus 30°, the oil can remain liquid, below -30°, the oil will be very poorly fluid.

15 means that when the temperature is minus 25°, the oil can remain liquid, below -25°, the oil will have poor fluidity.

20 means that when the temperature is minus 20°, the oil can remain liquid, below -20°, the oil will have poor fluidity.

The number after w" does refer to the viscosity of the oil at 100 degrees Celsius, and the higher the number, the more viscous the oil. The following numbers mainly refer to the index of high temperature resistance of the engine oil, and the higher the value, the better the protection performance of the engine oil at high temperatures.

w20 indicates that the viscosity is in between.

w30 indicates that the viscosity is in between.

w40 indicates that the viscosity is in between.

w50 indicates that the viscosity is in between.

W60 indicates that the viscosity is in between.

The biggest difference is the different viscosity grades, 40 viscosity is higher than 30.

It flows better than 5W-40, reduces fuel consumption (fuel) more, and dissipates heat faster to the engine.

2.For older cars, the engine is slightly noisier with 5w-30 oil than with 5w-40 oil.

3.For engines that strictly require the use of 5W-40, if 5W-30 is used, there is a possibility of higher than normal oil consumption (commonly known as: burning oil).

5w-40", "w" stands for "winter" which means used in winter, and the 5 in front of "w" represents the bai viscosity at low temperatures, the smaller the number, the stronger the fluidity at low temperatures, and the stronger the ability to withstand cold. "40" refers to the viscosity at 100, and the higher the number, the higher the viscosity and the stronger the ability to withstand high temperatures.

W indicates the temperature range of the oil, from 0w, 5w, 10w, 15w, 20w, 25w, etc., the smaller the number, the better its low temperature fluidity, the more it can work under low temperature conditions.

40 indicates the viscosity of the oil at 100, the grade has SAE, the higher the number, the higher the viscosity, 5W50 is commonly known as multi-grade oil. It means that the viscosity of this oil meets the requirements of 5w at low temperature, and the viscosity of 100 meets the requirements of No. 40.

According to the above self, you can choose according to your own situation.

0W is better, can withstand lower temperatures, low temperature cold start and protection performance is better than 5W. But I always feel that you change Mobil to be fake, I bought it in *** last year is fake, the subject is still cautious. I now only dare to buy magic red engine oil on the official website of GT, a niche brand, but there are no fakes, use the direction, and it is a base oil of four types of PAO, long-lasting and durable, and cost-effective maintenance.

The viscosity is different, the low temperature performance is different, and 0W will be better than 5W overall.

The oil label consists of two parts: grading and viscosity specification. The oil designation usually indicates viscosity and quality. The specific interpretation is as follows: the viscosity of lubricating oil is mostly marked by SAE and other grades, and SAE is the abbreviation of the English "Society of Automotive Engineers".

w stands for winter (winter), the more ** the number in front of it, the better the low temperature fluidity of the engine oil, the lower the ambient temperature available for use, and the better the protection ability of the engine during cold start; The number after the "W" (after a horizontal line) is an indicator of the high temperature resistance of the engine oil, and the higher the value, the better the protection performance of the engine oil at high temperatures.

The label after the classification of the engine oil indicates its viscosity specifications, for example, in "15w w-40", "w" means winter (winter), the more ** the number in front of it, the better the low temperature fluidity of the engine oil, the lower the ambient temperature available for use, and the better the protection ability of the engine during cold start, such as 5w represents the external low temperature resistance -30 °C, and the 20w low temperature resistance is -15 °, and the number behind the 20w low temperature resistance is -15 ° represents the kinematic viscosity of the oil at 100, the higher the value, the higher the viscosity.

40 represents 100 degrees Celsius, and the kinematic viscosity standard is between to, which is definitely not what some people say can be used below 40.

The oil classification is indicated using a two-letter combination. The series starting with "S" represents gasoline engine oil, and the general specifications are from SA to SN (in alphabetical order, but there is no SI in it), and with each additional letter, the performance of the oil will be better than the previous one, and there will be more additives in the oil to protect the engine.

The lower the letter, the higher the quality grade, and most of the oil grades in international brands are above the SF grade. The series starting with "C" represents diesel engine oils. If the letters "S" and "C" are present at the same time, it means that the oil is a general purpose type of gasoline and diesel.

Low temperature performance is different, the quality depends on whether the brand is the same, if the same, 0W as a whole will be better than 5W, if you want to protect the engine better, you can use a better fully synthetic engine oil, like the GT Magic Red that has been used more high-end now, PAO four types of base oil, the quality is better than the ordinary three types of base oil, and the protection of the engine is better in the long run.

0W and 5W refer to the low temperature fluidity of the oil. If it is not in Inner Mongolia or a particularly cold place in the Northeast, there is not much difference between 0w and 5w.

Refer to the following below:1. Low temperature viscosity is different: low temperature viscosity is low temperature fluidity.

W is the abbreviation of English winter, the number in front of W represents the low temperature fluidity of the oil, the smaller the number, the lower the low temperature viscosity of the oil, the better the fluidity, and the stronger the low temperature resistance. Therefore, the difference between Fenggao, 0W oil and 5W oil is that the low temperature fluidity of 0W oil is better than that of 5W oil.

2. Low temperature resistance is also different: generally 0W oil can be applied to 35 low temperatures, while the lowest 5W oil can only withstand 30 low temperatures. As the temperature drops, the oil thickens and the resistance to start the engine increases.

If you use low-temperature oil with poor fluidity at a temperature of tens of degrees below zero, it may cause the car engine to fail to start or even not start.

3. **Different: Relatively speaking, 0w oil is more expensive, and 5w oil is more economical. Purely from the viscosity grade, the performance of 0w is definitely better than that of 5w, after all, 0w is more resistant to cold, and the lower the minimum temperature can be applied, but this does not mean that it is the most suitable, in fact, when we choose oil, according to the local circumferential jujube ear environment, choosing the right type of oil is the best.

The model of car engine oil represents the low temperature resistance and viscosity at high temperature, 0w oil is of higher quality, and the power of only the limbs can be better 0w full synthesis, I have not used the original factory since the first insurance, and I have been using G T magic red 0w30 four types of PAO full synthesis, which is great.